Sheet, Rod and Tube
- Polyethylene materials are divided into
categories based on their specific gravity:
- A- low density polyethylene having specific
gravity of 0.910 - 0.925,
B- medium density polyethylene, specific gravity of 0.926 - 0.940,
C- high density (linear) polyethylene, specific gravity 0.941-
- The major advantages of polyethylenes
are light weight, excellent chemical resistance, low moisture
absorption, good impact strength, excellent low temperature properties,
superb dielectric properties and low coefficient of friction.
Unmodified polyethylenes can be produced from resins which are
approved for food applications.
- Increases in density result in: improved
chemical resistance, greater hardness and tensile strength, better
gas barrier properties, greater creep and temperature resistance.
- Polyethylenes can be shaped and formed
by standard heat forming techniques. If polyethylene is heated
to within 5°C of its melting point, it can be shaped easily
and will retain its imposed form on cooling. High density polyethylene
for instance should be heated to a range of 130°C - 135°C
- Polyethylenes can be readily welded with
hot air. However, since oxygen at high temperatures has a tendency
to degrade these materials, inert gas such as nitrogen should
be used to weld this material.
available in full sheet or cut to size based on availability:
- 48"x96" sheets with sizes ranging
from 1/8" to 1"
- 48"x96" sheets with gauge sizes
ranging 1/16 to 4"
- 48"x120" sheets gauge sizes
ranging from 1/8" - 2"
- 60x120 sheets with gauge sizes ranging
1/8 to 1